CN109348442A - A kind of wireless sensor cluster-dividing method based on timer - Google Patents
A kind of wireless sensor cluster-dividing method based on timer Download PDFInfo
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- CN109348442A CN109348442A CN201810950170.4A CN201810950170A CN109348442A CN 109348442 A CN109348442 A CN 109348442A CN 201810950170 A CN201810950170 A CN 201810950170A CN 109348442 A CN109348442 A CN 109348442A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 241000854291 Dianthus carthusianorum Species 0.000 claims abstract description 97
- 239000007858 starting material Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 11
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 3
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- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention provides a kind of wireless sensor cluster-dividing method based on timer, by electing cluster head and electing two suboptimization of cluster head to elect again, the equilibrium for realizing dump energy in node is synchronous with depletion rate, it is first cluster head by selecting the higher node of dump energy, then the average residual energy of all cluster heads is counted, cluster head and member are elected according to the dump energy of itself again respectively, and the average residual energy for comparing cluster head carries out selection cluster head, it prevents the node of lower dump energy from becoming cluster head and aggravates energy consumption, the node of higher dump energy is avoided to become member's energy residual more.
Description
Technical field
The present invention relates to mobile communication fields, more particularly to a kind of wireless sensor cluster-dividing method based on timer.
Background technique
Wireless sensor network (WSN, Wireless Sensor Network) is by a large amount of microsensor nodes (abbreviation
Node) large scale deployment is formed, specifically, the multi-hop that mode is formed by wireless communication, self-organizing intelligent network
Network.Wherein, sensor node is usually randomly dispersed in search coverage, to measure the heat in the ambient enviroment of region, sonar, red
Outside, the signals such as radar, sensor node get up the data collection of perception, and Sink node is transmitted in a manner of multihop routing
(aggregation node)；Finally, being sent to management node or user by aggregation node again.
If each sensor node carries out communication and data transmission in a network, serious number will occur
According to congestion and collision, thus the energy in consuming sensor network quickly.In order to improve energy utilization efficiency and reduce transmission
Delay, node are merged into many clusters, referred to as cluster, and the method for this combination sensor node is known as sub-clustering.
Sensor node is generally divided into cluster head and non-cluster head.Sensor node is by its power supply power supply, in practical applications, by
It is small in the capacity of power supply, be not easy to replace, and cluster head needs to handle more data manipulations, therefore the energy of cluster head compared to non-cluster head
Amount consumption is much larger than non-cluster head, in turn result in that cluster head energy consumption speed is very fast and existing WSN in each node energy consumption
Unbalanced problem.
Summary of the invention
In view of the foregoing deficiencies of prior art, the wireless biography based on timer that the purpose of the present invention is to provide a kind of
Sensor cluster-dividing method, for solving, cluster head energy consumption speed is very fast in the prior art and each node energy consumption is unbalanced
The problem of.
In order to achieve the above objects and other related objects, the present invention provides a kind of wireless sensor sub-clustering based on timer
Method, comprising:
Starter node, its own dump energy of each nodal test, higher dump energy is cluster head, and dump energy is lower
It is member；
Cluster head broadcasts cluster head notice message in a network, and member receives cluster head notice message and the member is forbidden to become cluster
Head；
Calculate the average residual energy of all cluster heads；
When the dump energy in member is more than or equal to the average residual energy, then cluster head is chosen as；
When the dump energy in cluster head is less than the average residual energy, then member is elected as.
Further, before starter node, it is arranged own timer t (i),Wherein t
It (i) is the timer of node i, TCHMaximum allocated time, E are selected for cluster headm(i) and Er(i) be respectively node i initial maximum
Energy and dump energy detect dump energy according to the response time of t (i).
Further, timer t (i) is more than default time, node starting, according to the size of dump energy in node
It is ranked up, energy is cluster head, remaining is member.
Further, cluster head notice message includes identification number, dump energy and the position of node.
Further, member is added the cluster head nearest apart from the membership location and communicates.
Further, the average residual energy μ is calculated by following formula,Wherein μ is average
Dump energy, Er(vi) be cluster head i in network dump energy, m is the quantity of cluster head in network, 1≤i≤m, and i and m are
Positive integer.
Further, the member in network detects self rest energy and compared with μ, when the dump energy in member is greater than
Or when being equal to μ, then it is chosen as cluster head.
Further, the cluster head in network detects self rest energy and compares in μ, when the dump energy in cluster head is less than
When μ, then member is elected as.
Further, member will test information and be transferred to cluster head, and cluster head is communicatively coupled by base station and data terminal.
Further, detection information includes heat, sonar, infrared or radar signal.
As described above, the wireless sensor cluster-dividing method of the invention based on timer, has the advantages that
1, setting timer and timer time before starting by node, cluster head and member are preselected, reduces energy consumption；
2, it is arranged come the dump energy in detection node by the size to dump energy in node by the response time
Sequence, the more election of energy be cluster head, energy it is lower election be member, optimize the energy consumption of node, prevent cluster head and
Member's energy residual is unbalanced；
3, during network communication, the average residual energy of all cluster head energy in network is detected, it will be remaining in member
The election that energy is more than or equal to the average residual energy is cluster head, and dump energy in cluster head is less than the average residual
The election of energy is member, and then the higher member of dump energy is elected as cluster head that the lower election of cluster head of dump energy is
Member, prevent lower dump energy node become cluster head aggravate energy consumption, avoid higher dump energy node become at
Member's energy residual is more；
4, member is added in the cluster apart from the nearest cluster head of this member, and data packet is avoided to intersect, and then avoids selection punching in cluster
Prominent problem.
Detailed description of the invention
Fig. 1 is shown as the wireless sensor network structural schematic diagram of the embodiment of the present invention.
Fig. 2 is shown as the flow diagram of the wireless sensor cluster-dividing method in the embodiment of the present invention based on timer.
Fig. 3 is shown as electing the flow chart of cluster head in the embodiment of the present invention.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
It please refers to Fig.1 to Fig.3.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its
Assembly layout kenel may also be increasingly complex.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
Art content obtains in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Before the embodiment of the present invention is described in detail, first application environment of the invention is described.The present invention
Technology mainly be applied in wireless sensor communication, inventor find in existing wireless sensor communication network, by
Larger in the energy consumption of cluster head, the energy consumption of member is relatively low, and causing existing cluster-dividing method cannot preferably solve
Cluster head energy and the inconsistent and nonsynchronous phenomenon of member's energy consumption speed lead to selection conflict, data transfer overhead in cluster
Larger, maintenance caused by dump energy differs greatly is inconvenient, inventors herein proposes a kind of wireless sensing based on timer thus
Device cluster-dividing method.
It please refers to Fig.1 to Fig.3, the present invention provides a kind of wireless sensor cluster-dividing method based on timer, comprising:
Starter node, its own dump energy of each nodal test, higher dump energy is cluster head, and dump energy is lower
It is member；
Cluster head broadcasts cluster head notice message in a network, and member receives cluster head notice message and the member is forbidden to become cluster
Head；
Calculate the average residual energy of all cluster heads；
When the dump energy in member is more than or equal to the average residual energy, then cluster head is chosen as；
When the dump energy in cluster head is less than the average residual energy, then it is elected as member, this programme is by choosing
It lifts cluster head and two suboptimization of cluster head is elected to elect again, the equilibrium for realizing dump energy in node is synchronous with depletion rate,
First by the way that select the higher node of dump energy be cluster head, then count the average residual energy of all cluster heads, cluster head and at
Member is elected according to the dump energy of itself again respectively, and the average residual energy for comparing cluster head carries out selection cluster head.
Referring to Fig. 3, be arranged own timer t (i) before starter node,Wherein t
It (i) is the timer of node i, TCHMaximum allocated time, E are selected for cluster headm(i) and Er(i) be respectively node i initial maximum
Energy and dump energy detect dump energy according to the response time of t (i), and cluster head broadcasts cluster head notice message in network,
Cluster head is elected as cluster head, and member receives cluster head notice message, closes its timer and be determined as member；
Cluster head notice message includes identification number, dump energy and the position of node, and then member is added apart from the member
The cluster of the nearest cluster head in position is communicated, and the intersection of data packet in network is prevented, and avoids the transmission thus caused sluggish.
Preferably, timer t (i) be more than the default time, node starting, according to dump energy in node size into
Row sequence, energy is cluster head, remaining is member, can demand according to the actual situation, as node total quantity and network in institute
The quantity for needing cluster head sets energy threshold or chooses the biggish preceding N of energy or choose the biggish preceding K% of energy as cluster head,
Remaining is member.
Preferably, the average residual energy μ is calculated by following formula,Wherein μ is average surplus
Complementary energy, Er(vi) be cluster head i in network dump energy, m is the quantity of cluster head in network, 1≤i≤m, and i and m are positive
Integer.
Preferably, member in network detects self rest energy and compared with μ, be greater than when the dump energy in member or
When person is equal to μ, then cluster head is chosen as；Cluster head in network detects self rest energy and compares in μ, when the residual energy in cluster head
When amount is less than μ, then member is elected as.
Preferably, member will test information and be transferred to cluster head, and cluster head is transferred to aggregation node, aggregation node by base station with
Data terminal is communicatively coupled.
Preferably, detection information includes the data class in the bearings industry such as pressure, revolving speed, light, deformation, friction, temperature rise
Type.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of wireless sensor cluster-dividing method based on timer characterized by comprising
Starter node, its own dump energy of each nodal test, higher dump energy is cluster head, and dump energy is lower to be
Member；
Cluster head broadcasts cluster head notice message in a network, and member receives cluster head notice message and the member is forbidden to become cluster head；
Calculate the average residual energy of all cluster heads；
When the dump energy in member is more than or equal to the average residual energy, then cluster head is chosen as；
When the dump energy in cluster head is less than the average residual energy, then member is elected as.
2. the wireless sensor cluster-dividing method according to claim 1 based on timer, it is characterised in that: in starter node
Before, it is arranged own timer t (i),Wherein t (i) is the timer of node i, TCHFor cluster head
Select maximum allocated time, Em(i) and Er(i) be respectively node i initial maximum energy and dump energy, according to the sound of t (i)
Dump energy is detected between seasonable.
3. the wireless sensor cluster-dividing method according to claim 2 based on timer, it is characterised in that: timer t (i)
More than the default time, node starting is ranked up according to the size of dump energy in node, and energy is cluster head,
Remaining is member.
4. the wireless sensor cluster-dividing method according to claim 1 based on timer, it is characterised in that: cluster head notice disappears
Breath includes identification number, dump energy and the position of node.
5. the wireless sensor cluster-dividing method according to claim 4 based on timer, it is characterised in that: member be added away from
The cluster head nearest from the membership location communicates.
6. the wireless sensor cluster-dividing method according to claim 1 based on timer, it is characterised in that: by following public
Formula calculates the average residual energy μ,Wherein μ is average residual energy, Er(vi) it is cluster head i in network
Dump energy, m is the quantity of cluster head in network, 1≤i≤m, and i and m are positive integer.
7. the wireless sensor cluster-dividing method according to claim 6 based on timer, it is characterised in that: in network at
Member detects self rest energy and compared with μ, when the dump energy in member is more than or equal to μ, is then chosen as cluster head.
8. the wireless sensor cluster-dividing method according to claim 6 based on timer, it is characterised in that: the cluster in network
Head detection self rest energy simultaneously compares in μ, when the dump energy in cluster head is less than μ, is then elected as member.
9. the wireless sensor cluster-dividing method according to claim 1 based on timer, it is characterised in that: member will test
Information is transferred to cluster head, and cluster head is communicatively coupled by base station and data terminal.
10. the wireless sensor cluster-dividing method according to claim 9 based on timer, it is characterised in that: detection information
Including the data type in the bearings industry such as pressure, revolving speed, light, deformation, friction, temperature rise.
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2018
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